CN101639800A - Display method of screen and terminal - Google Patents
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- CN101639800A CN101639800A CN200810142768A CN200810142768A CN101639800A CN 101639800 A CN101639800 A CN 101639800A CN 200810142768 A CN200810142768 A CN 200810142768A CN 200810142768 A CN200810142768 A CN 200810142768A CN 101639800 A CN101639800 A CN 101639800A
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Abstract
The embodiment of the invention provides a display method of a screen, comprising collecting user image in the shooting area in front of the screen; carrying out face recognition on the user image; judging whether the face recognition is successful, and opening or closing the screen according to the judgment result. The embodiment of the invention also provides a terminal. The embodiment of the invention collects the user image in the shooting area in front of the screen to carry out face recognition, then correspondingly executes opening or closing acts of the screen according to the result of the face recognition, can automatically open and close the screen according to the detected state of terminal used by the user to facilitate the use of the user.
Description
Technical field
The present invention relates to display screen display technique field, relate in particular to a kind of display method of screen and terminal.
Background technology
Along with the continuous development of technology, people's demand is also more and more, to the more and more higher requirement of intellectuality proposition of terminal (such as computer, mobile phone, PDA etc.).With the smart mobile phone is example, and the listing of the iPhone of Apple mobile phone has injected a pin " excitant " for smart mobile phone market, and wideling popularize of operating system makes that also smart mobile phone is more and more universal.The function of smart mobile phone becomes from strength to strength, includes but not limited to: support multimedia, built-in camera, longer battery life, superior user experience etc. is provided
Yet when using smart mobile phone, the user has also run into many inconvenience, and as displaying video, in order to reduce CPU, liquid crystal display, background light power consumption with prolongs standby time, the user often needs manually to carry out various energy saving optimizing settings.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: the display screen of terminal is still in running order when the user does not watch attentively or use, display screen is closed, the user needs oneself manually to go to close the power supply of display device or the backlight of display device, when needs are checked screen content, need again to open the power supply of display device or the backlight of display device, cause the user to use inconvenience thus.
Summary of the invention
In view of above content, be necessary to provide a kind of display method of screen and terminal, can make display screen open or close display screen automatically according to user's user mode, be user-friendly to.
Embodiment of the present invention provides a kind of display method of screen, comprising:
Gather the user images in the preceding camera watch region of display screen;
The user images of gathering is carried out recognition of face;
Judge that whether recognition of face is successful, opens or close display screen according to the result who judges.
A kind of terminal comprises:
Display device comprises that display screen reaches and the power supply that is used for to described display screen power supply;
Image acquisition units is used to gather the user images in the preceding camera watch region of display screen;
Face identification unit is used for the user images of described image acquisition units collection is carried out recognition of face;
Control module is used for opening or close power supply to described display screen power supply according to the display device of the recognition result control terminal of described face identification unit.
The embodiment of the invention is carried out recognition of face by the user images of gathering before the display screen, open or close the action of display screen then according to the corresponding execution of face recognition result, can use the state automatic open close display screen of terminal according to the user who surveys, be user-friendly to.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the embodiment of the invention one display method of screen;
Fig. 2 is the schematic flow sheet of the embodiment of the invention two display method of screen;
Fig. 3 is the structural representation of embodiment of the invention terminal;
Fig. 4 is the user mode synoptic diagram of embodiment of the invention terminal.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and the embodiments.Should be appreciated that embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Please refer to Fig. 1, be the schematic flow sheet of the embodiment of the invention one display method of screen, its step specifically comprises:
Step S10: gather the user images in the preceding camera watch region of display screen.Concrete, in the display device of terminal, being provided with camera head as the LCD of computer or the display screen of mobile phone, it can be opened by the software that is provided with in pressing keys or the terminal.Described camera head is used to gather the user images that comprises user people's face, and described user images is stored in the memory storage, and the storage medium of described memory storage can be disk, tape, CD, flash memory etc.During specific implementation, the people's face position in the described camera head lockable picture, and automatically with the main body of people's face as shooting, the user images that collects so just mainly comprises the image of user people's face, is convenient to subsequent treatment.
Step S12: the user images of gathering is carried out recognition of face.Concrete, user images people from location face according to described collection generates face images of users, utilizes the facial image of described generation to carry out recognition of face.Face recognition technology be a kind of refer to utilize analyze relatively people's face visual signature information and carry out the computer technology that identity is differentiated.Its identifying is that input contains the facial image that does not determine one's identity in system substantially, by with database in the facial image or the respective coding of some known identities compare, draw the similarity score of two people's faces, and then reach the purpose of the identity of people's face to be identified.
When carrying out recognition of face, the embodiment of the invention imports the face images of users of described generation, facial image, face characteristic data or respective coding according to the some known identities in the face database, whether output human face similarity degree score, it is successful to judge recognition of face according to the human face similarity degree score.Concrete, can identify characteristic informations such as main eyes, mouth from the face images of users of described input, compare with the face characteristic data of storing in advance in the face database, and then the similarity score of output people face.Described face characteristic data can be stored in the described memory storage in advance.
Step S14: judge whether success of recognition of face, if discern successfully, execution in step S16 then; If identification is unsuccessful, then execution in step S18.Concrete, whether can judge recognition of face according to the human face similarity degree score of step S12 successful, can set in advance a threshold value, promptly represent the recognition of face success if the human face similarity degree score surpasses or equals described threshold value, otherwise represent that promptly recognition of face is unsuccessful.
Step S16: open display screen.Concrete, if the recognition of face success, before then expression had the user to be in display screen at this moment, the control device in the terminal produced one and starts the power supply of display device or the signal of backlight power supply, to open display screen.Like this, before if the user is in display screen, and people's face is in the camera watch region (expression user just watching attentively or handling this moment be in display screen the place ahead), after images acquired and recognition of face and recognition of face success, the display screen of terminal can be opened demonstration automatically, need not the user and could open display screen by other modes such as pressing keys or touch display screens.
Step S18: close display screen.Concrete, if recognition of face is unsuccessful, before then expression does not have the user to be in display screen at this moment, though before perhaps having the user to be in display screen, but people's face of user is not in camera watch region, then the control device in the terminal produces one and cuts out the power supply of display device or the signal of backlight power supply, to close display screen.Like this, when the user left display screen because of other things, terminal can be closed display screen automatically, not only can save energy consumption, increased stand-by time, also can improve the user experience that the user uses terminal.
The embodiment of the invention is carried out recognition of face by the user images of gathering before the display screen, open or close the action of display screen then according to the corresponding execution of face recognition result, can use the state automatic open close display screen of terminal according to the user who surveys, be user-friendly to.
Please refer to Fig. 2, be the schematic flow sheet of the embodiment of the invention two display method of screen, its step specifically comprises:
Step S21: start the human body detection function, carry out human body detection.Concrete, can on the display device of terminal, apparatus for detecting human body be set, described apparatus for detecting human body can carry out human body detection by ultrasound wave, infrared ray etc.Can open by the software command in manually opened or the terminal during concrete the startup, described apparatus for detecting human body be opened, and be in acquisition mode always.
Step S22: judge whether detect human body before display screen, if do not detect human body, then execution in step 23; If detect human body, then execution in step 24.
Step S23: close display screen.Concrete, if do not detect human body, then there is not the user before the display screen of expression terminal this moment, the user does not use terminal or watches display screen attentively this moment, control device in the terminal produces one and cuts out the power supply of display device or the signal of backlight power supply, to close display screen.
Step S24: start image collecting function, gather the user images in the preceding camera watch region of display screen.Concrete, in the display device of terminal, be provided with camera head as the LCD of computer or the display screen of mobile phone, when detecting human body, opens step S22 described camera head.Described camera head is used to gather the user images that comprises user people's face, and described user images is stored in the memory storage, and the storage medium of described memory storage can be disk, tape, CD, flash memory etc.During specific implementation, the people's face position in the described camera head lockable picture, and automatically with the main body of people's face as shooting, the user images that collects so just mainly comprises the user images of user people's face, is convenient to subsequent treatment.
Step S25: the user images of gathering is carried out recognition of face.Concrete, user images people from location face according to described collection generates face images of users, utilizes the facial image of described generation to carry out recognition of face.Face recognition technology be a kind of refer to utilize analyze relatively people's face visual signature information and carry out the computer technology that identity is differentiated.Its identifying is that input contains the facial image that does not determine one's identity in system substantially, by with database in the facial image or the respective coding of some known identities compare, draw the similarity score of two people's faces, and then reach the purpose of the identity of people's face to be identified.
When carrying out recognition of face, the embodiment of the invention imports the face images of users of described generation, face characteristic data such as facial image, face characteristic data or respective coding according to the some known identities in the face database, whether output human face similarity degree score, it is successful to judge recognition of face according to the human face similarity degree score.Concrete, can identify characteristic informations such as main eyes, mouth from the face images of users of described input, compare with the face characteristic data of storing in advance in the face database, and then the similarity score of output people face.Described face characteristic data can be stored in the described memory storage in advance.
Step S26: judge whether success of recognition of face, if discern successfully, execution in step S27 then; If identification is unsuccessful, then execution in step S23.Concrete, whether can judge recognition of face according to the human face similarity degree score of step S25 successful, can set in advance a threshold value, promptly represent the recognition of face success if the human face similarity degree score surpasses or equals described threshold value, otherwise represent that promptly recognition of face is unsuccessful.
Step S27: open display screen.Concrete, if the recognition of face success, before then expression had the user to be in display screen at this moment, the control device in the terminal produced one and starts the power supply of display device or the signal of backlight power supply, to open display screen.Like this, before if the user is in display screen, and people's face is in the camera watch region (expression user just watching attentively or handling this moment be in display screen the place ahead), after images acquired and recognition of face and recognition of face success, the display screen of terminal can be opened demonstration automatically, need not the user and could open display screen by other modes such as pressing keys or touch display screens.
The embodiment of the invention two is to have increased the step that judges whether to start camera function by human body detection with the difference of embodiment one, and image collecting function is opened after detecting human body again, effectively saves energy consumption; Carry out recognition of face by the user images of gathering before the display screen, the action of display screen is opened or is closed in corresponding execution according to face recognition result then, can use the state automatic open close display screen of terminal according to the user who surveys, and is user-friendly to.
Please refer to Fig. 3, be the structural representation of embodiment of the invention terminal, it comprises sniffer 50, image acquisition units 52, storage unit 54, face identification unit 56, control module 58 and display device 60.
Described sniffer 50 is used to carry out human body detection.Described display device 60 comprises that display screen 62 reaches and the power supply 64 that is used for to described display screen 62 power supplies, if described display screen 62 is LCD, then described power supply 64 is the backlight power supply.Described sniffer 50 can be located at any position of described display device 60, the top of display screen 62 as described.Described sniffer 50 carries out human body detection by ultrasound wave, infrared ray etc., and promptly described sniffer 50 can be ultrasonic detector or pyroscan, also can be other devices that can carry out human body detection.Described sniffer 50 can be opened by the software command in manually opened or the terminal, described sniffer 50 is opened, and be in acquisition mode always.
Described image acquisition units 52 is gathered the user images in the camera watch region before the display screen when being used for described sniffer 50 detecting human body before the display screen of terminal.Described image acquisition units 52 comprises a camera head, described camera head can be located at the top or the below of described display screen 62, when the user uses terminal or watches terminal display screen attentively, make described sniffer 50 over against user's head, be convenient to image acquisition units 52 and collect the user images that comprises user people's face.Described image acquisition units 52 can adopt the camera head with intelligent locking people face when specific implementation, people's face position when the collection user schemes in the lockable picture, and automatically with the main body of people's face as shooting, the user images that collects so just mainly comprises the user images of user people's face, is convenient to subsequent treatment.
Described storage unit 54 is used to store the user images that described image acquisition units 52 is gathered.The storage medium of described memory storage 54 can be disk, tape, CD, flash memory etc.
Described face identification unit 56 is used for the user images that described image acquisition units 52 is gathered is carried out recognition of face.Described storage unit 54 also is used to store the face characteristic data such as facial image, face characteristic data or respective coding of some known identities, described face identification unit 56 is obtained the user images that described image acquisition units 52 is gathered from described storage unit 54, the face characteristic data of storage in described user images and the described storage unit 54 are compared, and then the similarity score of output people face, can judge according to described similarity score whether recognition of face is successful.Concrete, described face identification unit 56 can set in advance a threshold value, promptly represents the recognition of face success if the human face similarity degree score surpasses or equals described threshold value, otherwise represents that promptly recognition of face is unsuccessful.
But described storage unit 54 individualism when specific implementation also can be integrated in described image acquisition units 52 or the described face identification unit 56.
Described control module 58 is used for controlling described display device 60 according to the recognition result of described face identification unit 56 and opens or close.Described face identification unit 56 is if identification people face is unsuccessful, then described control module 58 produces the power-off signal and sends the power supply 64 of described display device 60 to, described 64 stop to reach the purpose of closing described display device 60 to described display screen 62 power supplies after receiving described power-off signal.If described face identification unit 56 is the success of identification people face, then described control module 58 produces the electric power starting signal and sends the power supply 64 of described display device 60 to, described 64 begin to reach the purpose of opening described display device 60 to described display screen 62 power supplies after receiving described electric power starting signal.
The embodiment of the invention is gathered user images by described image acquisition units 52,56 pairs of user images that collect of described face identification unit are carried out recognition of face, described control module 58 is controlled the keying of described display device 60 according to the result of recognition of face, can use the state automatic open close display screen of terminal according to the user who surveys, be user-friendly to; Survey by 50 pairs of human bodies of described sniffer in addition and judge whether to start described image acquisition units 52, described image acquisition units 52 is opened after detecting human body again, effectively save energy consumption.The embodiment of the invention also can not comprise described sniffer 50.
Please in conjunction with reference to figure 4, user mode synoptic diagram for embodiment of the invention terminal, suppose that user 30 is positioned at display screen 62 the place aheads of described terminal 60 this moment, and distance and visual angle are all in the image pickup scope of described image acquisition units 52, this moment, the image collecting function of described image acquisition units 52 was opened, also can detect user 30 backs at described sniffer 50 and carry out image acquisition during specific implementation by sniffer 50 is set in the described image acquisition units 52 of unlatching.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, and described storage medium is ROM/RAM, magnetic disc, CD etc.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (12)
1, a kind of display method of screen comprises:
Gather the user images in the preceding camera watch region of display screen;
The user images of gathering is carried out recognition of face;
Judge that whether recognition of face is successful, opens or close display screen according to the result who judges.
2, the method for claim 1 is characterized in that: before the user images step before described collection display screen in the camera watch region, also comprise step:
Start the human body detection function, carry out human body detection;
Whether judgement detects human body before display screen, if detect human body then start the step of the user images in the camera watch region before the described collection display screen.
3, method as claimed in claim 2 is characterized in that: described human body detection is to carry out human body detection by ultrasound wave or infrared ray.
4, the method for claim 1 is characterized in that: if the result who judges recognition of face then opens display screen for being, if the result who judges recognition of face then closes display screen for not.
5, the method for claim 1 is characterized in that: the step that described user images to collection is carried out recognition of face comprises:
The user images of described collection and the face characteristic data of storage are in advance compared, and the similarity score of output people face judges according to the similarity score of described people's face whether recognition of face is successful.
6, method as claimed in claim 5 is characterized in that: describedly judge whether successful step comprises in recognition of face:
Judge that whether described human face similarity degree score surpasses or equal pre-set threshold, if judge structure for being expression recognition of face success, otherwise the expression recognition of face gets nowhere.
7, a kind of terminal comprises:
Display device comprises that display screen reaches and the power supply that is used for to described display screen power supply;
Image acquisition units is used to gather the user images in the preceding camera watch region of display screen;
Face identification unit is used for the user images of described image acquisition units collection is carried out recognition of face;
Control module is used for opening or close power supply to described display screen power supply according to the display device of the recognition result control terminal of described face identification unit.
8, terminal as claimed in claim 7 is characterized in that: also comprise
Sniffer is used to carry out human body detection, starts described image acquisition units when detecting human body before the display screen of described sniffer terminal and carries out the user images collection.
9, terminal as claimed in claim 7 is characterized in that: also comprise
Storage unit is used to store the user images that described image acquisition units is gathered, and the user images that described face identification unit is obtained described collection from described storage unit is carried out recognition of face.
10, terminal as claimed in claim 7, it is characterized in that: described face identification unit is compared the user images of described collection and the face characteristic data of storage in advance, the similarity score of output people face judges according to the similarity score of described people's face whether recognition of face is successful.
11, terminal as claimed in claim 10, it is characterized in that: described control module judges that whether described human face similarity degree score surpasses or equal pre-set threshold, if judge that structure is successful for being the expression recognition of face, otherwise the expression recognition of face is unsuccessful.
12, as each described terminal of claim 8-11, it is characterized in that: if described control module is judged the recognition of face success, then open the power supply of described display screen power supply,, then close the power supply of described display screen power supply if judge that recognition of face is unsuccessful.
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| CN200810142768A CN101639800A (en) | 2008-08-01 | 2008-08-01 | Display method of screen and terminal |
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| CN200810142768A CN101639800A (en) | 2008-08-01 | 2008-08-01 | Display method of screen and terminal |
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